

Powercoin
powercoin is an ultra-compact Qi-certified wireless power transfer receiver
- Size
- 19.3 × 24.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 30
- Nets
- 18
- Pads
- 83
- Tracks, vias
- 151, 37
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 6 (file 20220331)
- Created
- 23 Jul 2023
- Updated
- 23 Jul 2023
Overview
Powercoin is an open-source printed circuit board by byrantech, from the byrantech/powercoin repository on GitHub, published under the MIT licence. It is a 2-layer board of 19.3 × 24.1 mm with 30 parts on 18 nets, routed with 151 tracks and 37 vias.
It is built around the BQ51050BRHLR. Its parts include 16 capacitors, 5 resistors, 1 IC and 1 diode. It belongs with the power boards of this library.
Main components
1README
README.mdpowercoin
Powercoin is an ultra-compact Qi-certified wireless power transfer receiver. A functional prototype was achieved in May 2022, and full integration into devices like the Logitech G502 or similar Razer products are planned. Optimized for production with JLCPCB.
Blender animated render of the powercoin (EEVEE rendering engine, custom procedural materials)
Parts
30| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 68nf | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3 |
| 2 | 100nf | Capacitor_SMD:C_0603_1608Metric | C12, C14 |
| 2 | 10nf | Capacitor_SMD:C_0603_1608Metric | C6, C11 |
| 2 | 10μF | Capacitor_SMD:C_0603_1608Metric | C15, C16 |
| 2 | 22nf | Capacitor_SMD:C_0603_1608Metric | C7, C10 |
| 2 | 470nf | Capacitor_SMD:C_0603_1608Metric | C8, C9 |
| 1 | 1.8nf | Capacitor_SMD:C_0603_1608Metric | C4 |
| 1 | 100pf | Capacitor_SMD:C_0603_1608Metric | C5 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | 196 | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 1μF | Capacitor_SMD:C_0603_1608Metric | C13 |
| 1 | 20k | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 330 | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 66 | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | BQ51013B_VQFN_20 | Package_DFN_QFN:Texas_VQFN-RHL-20 | IC1 |
| 1 | CHG | TestPoint:TestPoint_THTPad_D1.0mm_Drill0.5mm | TP5 |
| 1 | COIL1 | TestPoint:TestPoint_Keystone_5019_Minature | TP1 |
| 1 | COIL2 | TestPoint:TestPoint_Keystone_5019_Minature | TP2 |
| 1 | GND | TestPoint:TestPoint_Keystone_5019_Minature | TP4 |
| 1 | LED | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | LOGO | Byran_Logo:Byran_Tech_Logo_3mm_v2 | G*** |
| 1 | PWR | TestPoint:TestPoint_Keystone_5019_Minature | TP3 |
| 1 | RECT | TestPoint:TestPoint_THTPad_D1.0mm_Drill0.5mm | TP6 |
Questions
How big is the Powercoin PCB?
It measures 19.3 × 24.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Powercoin use?
30 parts, built around the BQ51050BRHLR. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Powercoin KiCad files?
From the byrantech/powercoin repository on GitHub, at the commit this page was made from: the board is powercoin/powercoin.kicad_pcb and its schematic powercoin/powercoin.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Powercoin design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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